[PATCH] cpufreq: Fix an IS_ERR() vs NULL bug in spear1340_set_cpu_rate()

[Dan Carpenter <error27@gmail.com>]

The clk_get_parent() function doesn't return error pointers, it returns
NULL on error.  Update the error checking to match.

Fixes: 420993221175 ("cpufreq: SPEAr: Add CPUFreq driver")
Signed-off-by: Dan Carpenter <error27@gmail.com>
---
 drivers/cpufreq/spear-cpufreq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c
index 81a0780b2ebf..ffe5eda82f0b 100644
--- a/drivers/cpufreq/spear-cpufreq.c
+++ b/drivers/cpufreq/spear-cpufreq.c
@@ -79,9 +79,9 @@ static int spear1340_set_cpu_rate(struct clk *sys_pclk, unsigned long newfreq)
 	int ret = 0;
 
 	sys_clk = clk_get_parent(spear_cpufreq.clk);
-	if (IS_ERR(sys_clk)) {
+	if (!sys_clk) {
 		pr_err("failed to get cpu's parent (sys) clock\n");
-		return PTR_ERR(sys_clk);
+		return -EINVAL;
 	}
 
 	/* Set the rate of the source clock before changing the parent */
-- 
2.53.0